View Single Post
  #14   Spotlight this post!  
Unread 24-01-2017, 07:32
tr6scott's Avatar
tr6scott tr6scott is offline
Um, I smell Motor!
AKA: Scott McBride
FRC #2137 (TORC)
Team Role: Mentor
 
Join Date: Dec 2007
Rookie Year: 2005
Location: Oxford, MI
Posts: 535
tr6scott has a reputation beyond reputetr6scott has a reputation beyond reputetr6scott has a reputation beyond reputetr6scott has a reputation beyond reputetr6scott has a reputation beyond reputetr6scott has a reputation beyond reputetr6scott has a reputation beyond reputetr6scott has a reputation beyond reputetr6scott has a reputation beyond reputetr6scott has a reputation beyond reputetr6scott has a reputation beyond repute
Re: Programming Bulletin 873M Ultrasonic Analog Sensor

FWIW we tested yesterday with two 10k Ohm resistors wired in series between the black output and the blue 0V reference, and the sensor worked fine. The junction point between the two resistors ranged from 0-5v based on sensor distance, this test was done with a 24vdc power supply and a digital voltmeter, we did not install on bot yet.

Upon a more significant review of the data sheet, there is a small note that the the analog voltage sensors require input voltage of 15v-30v, which makes using this sensor on a robot more problematic, as you don't have easy access to voltages above 12v with the current control system provided.

We will be looking at a different solution to measure distance on the bot this year.
Attached Thumbnails
Click image for larger version

Name:	873M.PNG
Views:	11
Size:	31.1 KB
ID:	21607  
__________________
The sooner we get behind schedule, the more time we have to catch up.

Reply With Quote